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SULPHATE OF CADMIUM. 309

also be employed in the form of powder like iodoform, for sprin-
kling in wounds.
It is also used internally in cholera infantum, typhoid fever,
etc., etc.
Dose.—For internal administration, the dose of bromol is from
15T to yl grain.
Dental Uses.—The uses of bromol in dental practice are the
same as iodol, iodoform and other antiseptics. Good results
have been obtained by its application to teeth affected with alve-
olar abscess and gangrenous pulps.

CADMII SULPHAS—SULPHATE OF C^ADMIUM.
^ Formula.—^Cd?^O^^^W.p.
Derivation.—Sulphate of Cadmium is obtained by the action
of nitric acid, diluted with distilled water, on the metal cadmium,
the solution filtered and mixed with carbonate of soda, and again
dissolved in sulphuric acid diluted with distilled water. It is in
the form of transparent, colorless crystals, like those of sulphate
of zinc.
Medical Properties and Action.—Sulphate of cadmium is emetic
and astringent, and closely resembles sulphate of zinc in its
action, but is stronger, with a caustic astringent taste. It is very
nauseant and depresses greatly. Locally it is an irritant poison,
and produces the cerebro-spinal symptoms of coma and convul-
is not administered internally, as the preparations of
sions ; it
zinc are preferable for such use.
Therapeutic Uses.—Sulphate of cadmium is employed locally in
affections of the eye, being valuable as a coUyrium ; it has the
power of causing absorption of opacities of the cornea to a re-
markable degree. It is also used as an injection in gonorrhoea,
in the strength of one grain to four ounces of water. It is also
used in the form of ointment, two grains with four scruples of lard.
Dental Uses.—Sulphate of cadmium has been employed in
ulcerations of mucous membrane, gangrene of the mouth, or can-
crum oris, indolent ulcers, purulent diseases of the antrum, in the
form of injections and lotions, of a strength about one grain of
the sulphate to four ounces of water.